Plant Doctor Liquid Iron Fertiliser - 7% Iron; 3% Sulphur
Supercharged with Fulvic acid
Provides a highly available form of liquid Iron (Fe) with Sulphur to produce higher Chlorophyll levels resulting in rich green colour in leaves & help correct to iron deficiencies in your lawn, plants & crops.
The added Fulvic Acid will ensure quick uptake of the nutrients to provide fast results.
Can be applied to the leaves (Foliar) or directly to the soil.
Will help maintain plant growth & deep green colour in turf & plants.
Can coagulate with humic based products like our fertilisers & soil conditioners - do a small “jar-test” first.
Will help correct yellowing in new leaf growth.
Iron (Fe) is a vital micro-nutrient required by plants in order to form chlorophyll. And chlorophyll is what gives plants/lawn their green colour. Iron deficiency occurs when there is either not enough iron in the soil, or the iron is tied up and unavailable due to high pH (alkaline soil), or poor aeration. It can also be induced by an over-abundance of calcium in the soil or an over-application of lime.
Iron chlorosis is the name of the condition found in plants that are iron deficient. It is one of the most common micro-nutrient problems of ornamentals, shrubs, vines, small fruits, and trees. Leaves of affected plants are yellow, light green, or white with distinct green veins.
Apply every 4 weeks in growing season or as required.
Ornamental Plants
10-25ml/10litres water
100-250ml/100sqm
Apply every 4 weeks in growing season or as required.
Vegetables
150-300ml/100sqm
1.5-3L/Ha
Apply fortnightly or as required.
Trees, Fruits, Nuts & Grapevines
150-300ml/100sqm
1.5-3L/Ha
Apply every 6-8 weeks or as required.
Broadacre crops
3-8L/Ha
Apply as required with normal program
TYPICAL ANALYSIS W/V
Iron (Fe) = 7%
Sulphur (S)= 3%
Warnings:
Do not spray in hot weather conditions. Not compatible with many products. Check the labels and do a jar test first.
Iron can stain paths, concrete, paving, clothes and skin, so always wear old clothes, wash hands after use and be careful when applying near concrete and paths etc. Wash off immediately any lasting damage. Keep away from water sources such as ponds, pools etc. Safe for childern & pets when dry.
Iron deficiency in many plants & lawns is an indication of high pH or alkaline soil. If yellowing persists or returns rapidly after treatment, soil pH should be checked and adjusted if necessary.
Follow application directions as excess liquid iron can lead to other problems, such as zinc and manganese deficiencies. While liquid iron provides immediate relief for plants & soil, it is not an adequate long-term solution for an iron deficiency. Keeping plants/Lawn in well-drained soil amended with sulphur to reduce the pH level can help iron in the soil become more available to plants.
(LIR)
Product Application
Iron products can have an adverse reaction with our darker liquids. To avoid blockages in sprayer nozzles we recommend applying the Iron separately to other products. (Stimulizer is safe to mix with Iron). If attempting to mix together, try a jar test in the ratios you want to apply them in first. Iron should always be added last after all other products are diluted with water.
Applied separately at various frequencies allows you to tailor nutrient input based on the soil/plant/lawns requirements and condition.
Popular Questions
Question: Should I water the lawn after applying Liquid Iron or wait 24 hours?
Answer: Liquid Iron doesn’t have to be watered in however, some do prefer to water it in, so either option is alright. Environmental factors (time of day it’s applied, wind, precipitation, time left on the leaf, soil pH, etc) can also play a part in how well it works when applied and as these often change, you may experience different results with each application.
Question: Can I mix Liquid Iron with other products?
Answer: Liquid Iron should not be mixed with other products, except for Stimulizer.
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Amount of Reviews: 114
Awesome product
By: jade on 13 November 2024
My lawn has never looked better 12 months in after using 5 different products. Its looking mint !
Liquid iron
By: Bryce on 10 November 2024
Really happy with the results so far, lawn is looking very lush and green since applying! You won’t be disappointed!!
Liquid Iron
By: Justin on 24 September 2024
Another great product from the team at Plant Doctor. Was drawn to this company as they have a strong background in horticulture/agriculture products where it is important to provide effective and efficient use of products. Backed by science, their products are easy to use with lower application rates avoiding unnecessary overuse of products.
Great product
By: David on 7 August 2024
Works well with my other plant doctor products I use
Highly recommend
By: Zohreh on 5 July 2024
I recently purchased this liquid iron fertiliser for my citrus tree. The product arrived promptly and was well-packaged. The instructions provided online are clear and straightforward, making it easy to understand how to apply. I am looking forward to seeing the results once I start using it and will update my review based on the tree’s response. So far, I am impressed with the purchase experience and the quality of the product.
Great service and fast shipping.
By: jade on 12 March 2024
Liquid iron Fert is a fantastic product which exceeded my expectations. I’ll be back again!
Amazing
By: Antony on 11 March 2024
Liquid iron is a top product. Finally got into the swing of spraying and liquid iron is an awesome solution to a super green lawn before house events or if you just want to dominate the neighbourhood! :)
LUSH AND GREEN
By: Tanya on 6 February 2024
Love this product, made my new lawn from light green to a bright vibrant green in only two applications! Highly recommend.
Green green :)
By: Jordan on 25 January 2024
It really makes my grass pop
Liquid Iron
By: Andrew on 9 January 2024
Within 2 days a deep green can be seen. Very easy application and mixing rate.
3rd order - Santa Ana Googong
By: Stuart on 8 January 2024
Hi team, thank you for the prompt delivery across the Dec-Jan period. I have been using your lawn products exclusively and really happy with the results on our lawn, albeit a bit wet here near Canberra in Jan!
I ran out of the liquid iron, Quantum H and Seaweed Secrets earlier than the other products (higher rate of use), I will consider upping to the 10L next round.
I will add some pics to your gallery when I can, but can thoroughly recommend this line of lawn care.
I use a combination of Liquid Iron, Seaweed Secrets, Humic Acid, Stimuliser, Quantum H, Activ8 Mate (changing to Activ8Extra). All applied with a manual backpack sprayer, we have about 100sqm front and 100sqm rear lawn.
Thank you and keep up the great work, cheers Stuart.
PS: Feel free to add this review to Quantum H and Seaweed Secrets as they were purchased with this product.
Improvement overnight!
By: Kain on 1 January 2024
I applied this product to both my lawn and a plant I have that is iron deficient and have noticed a massive improvement in the plant particularly overnight
Great product, impressive results
By: Tai on 12 December 2023
This is a great product, with recommended application rates lower than other brands. Easy to apply and yields the expected results. Lush, green grass in no time at all.
Liquid iron
By: Joshua on 15 November 2023
What a great product saw great greening in my grass within one day definitely recommend
Green Gold
By: David on 3 August 2023
What a difference this makes. Makes all the difference for plant health and colour.
Best liquid Iron
By: Adam on 25 May 2023
This liquid iron is one of the best product I have used. After only 24 hours you can really see the difference in colour in the lawn. I have just applied another application so looking forward to seeing how much this protects the lawn from Frost.
Great Green up
By: Philip on 24 May 2023
Nice and easy liquid iron deepens the colour of the lawn almost overnight tested it by not spraying the nature strip and the depth of colour is intensly different. Love it
GREEN!
By: Joshua on 17 April 2023
Used this for the second time this week. Within a few hours the lawn seems to take on a great colour. All of the products ive purchased seem to be doing a great job along with the great service from Plant Doctor
Liquid iron
By: Michelle on 30 March 2023
I use this product monthly on my lawn at 200mls/100m2 in 9L water which gives great coverage on the leaves and the greening effect lasts longer when I’m mowing on average every 2-3 days. Applied early in the morning or afternoon and soil has good moisture and I leave it on the leaf. With 9L water per 100m2 I’ve never had my lawn go black or any other negative result as some people may experience when the spray is too concentrated.
Great product for a greening up effect when you don’t need nitrogen and the additional growth.
As an independent agronomist I highly recommend the liquid iron.
Excellent product
By: Andrew on 9 January 2023
This is a great product at a very competitive price. Highly recommend to anyone looking to benefit their lawn. The dark green colour this produces is incredible.
Great Product
By: Joel on 1 January 2023
Excellent results on my Kik in SEQ, very quick postage and great communication, highly recommend
Liquid Iron
By: ben on 26 December 2022
want a greener lawn than your neighbours, this is what you need after your normal fertiliser application.
5 star praise
By: dion on 27 September 2022
First time taking on a lawn reno and with help and guidance from the plant doctor my lawn is looking amazing.
This stuff is so easy to use with simple application instructions right there on the bottle you will get results in no time at the fraction of the price
Beautiful green on an early reno
By: Blas on 30 August 2022
Giving my grass some much needed TLC
If you want dark green lawn - USE THIS
By: Vincent on 18 April 2022
I thought my lawn was prettty green. But after all the positive review for liquid iron on youtube. I thought I'll give this a shot. And wow my lawn has never been this dark emerald green before. Highly recomend this product
Amazing Green Zoysia
By: David on 23 March 2022
I use the Plant Doctor liquid iron on both my Empire and Augusta Zoysia in conjunction Natures Soil Wetter, Seaweed Secrets, Quantum, Stimulizer and Activ8Mate and they bring a depth of healthy colour to my lawn that I have not seen with any other combination of products that I've tried
Amazing
By: Adam on 8 March 2022
Amazing product! Results are virtually instant and gives the lawn a much needed boost!
Big green up
By: Jarod on 16 February 2022
The perfect product to get your lawn ready for big events, Christmas day, Boxing day etc.
The street envy is real!
Green!
By: Andrew on 11 January 2022
Awesome to be able to buy this one in bulk (20L). Not only quick to arrive but quick results in the lawn also!
DEEP GREEN
By: Aiden on 26 December 2021
Very impressed by this product teamed up with the stimuliser can see results within 5hrs in my zoysia and lasts a good week or so of deep rich green colour and the feel of the lawn is great! Jump on and be the envy of the street
Great product
By: nicholas on 23 December 2021
Excellent product for the fast greening of lawns recommended
Liquid Iron
By: Matthew on 6 November 2021
Next level deep green on lawns. Starts to work within hours. Highly recommend.
Liquid Green Gold
By: James on 25 October 2021
Fantastic product, greened up the patch in days. Economical and good value for your money!
Impressive
By: Alex on 15 October 2021
A great product which gives you a deep green all year round, even in winter dormancy, highly recommend
Liquid Iron
By: Greg on 30 September 2021
Have only used this product for a short time, but noticed a huge difference on my lawn after the 1st dose. Great product
The Greenest of lawns
By: Nelson on 2 September 2021
I have been using this product for a couple of months now and I have to say I am really happy with the results. My lawn looks healthy, green and lush. Easy to apply with simple directions and so far producing great results. Very happy.
Essential Lawn Product !
By: Tim on 23 August 2021
If I had to recommend one product as best bang for buck to improve the look of your lawn then this would be it. Results are noticeable the next day. Plenty of neighbors asking for the secret !
Deep green
By: Bruno on 12 August 2021
Great product to achieve a deep green colour. Looking forward to applying it with PGR
Quick Green up
By: Anferny on 9 August 2021
Definitely another fantastic products from the plant doctor to get a quick green up on the lawn.
Also adding to a little bit of iron and stim in my vegetable garden help the leaf much stronger green.
Would recommended to have this product on their shelves
Great product!
By: Mason on 15 July 2021
I bought a bulk order of the ben sims pack which included this product and a variety of others. I Have been very satisfied this season with the results. Grass has handled the temperatures well with the assistance to plant doctors foliar products. The turf looks great and loves the applications. At a competitive price, i highly recommend.
the Iron gives it that extra green-up boost and makes the lawn really pop!
Instant green up
By: Josh on 7 July 2021
I use this product on my lawn for a green up every one to two months. I applied it twice in one month but it was too much and my lawn had an ugly grey colour.
Top shelf iron
By: Steve on 2 July 2021
One of the best iron products I’ve used on the market.
Deep Green liquid iron
By: Christopher on 16 June 2021
I love this product. Produces a very appealing deep green colour in your lawn and when supplemented by the activ8Extra liquid fertilizer you will get amazing results. I will keep purchasing and using these products. 10/10 would recommend.
A must have for a lush lawn!
By: Shoua on 4 June 2021
I have used various brands of Iron, but nothing comes closer to PD's Iron Fertilizer where results are concerned. Iron is an essential plant food and I usually apply the recommended dose late afternoon to enjoy the results overnight - its so satisfying to see the difference!
So green
By: Blake on 26 March 2021
Great to add while spraying PGR
Effective results!
By: DYLAN on 22 March 2021
Every time I apply as a foliar application, I see results within 10-15 mins - especially when applying with a bit of Stimulizer. It's very effective and greens up well over the coarse of a day or two. I love this product the most of all Plant Doctors products. I'm now buying it in 20L
So Green
By: David on 20 February 2021
First time using liquid iron on my lawn and I was amazed how well it works and how much greener it is.
Very happy with dark green colour
By: Simon on 20 February 2021
Really boosts the colour of the lawn
Get your green on!
By: Mike on 9 January 2021
This stuff will have your neighbours envious! Green your lawn overnight! A little goes a long way!
My favourite product!
By: Sheldon on 9 January 2021
I love using Plant Doctor's liquid iron. It always makes my lawn 'pop'. It is fast acting too.
Sensational mix
By: Tyler on 4 January 2021
I purchased the Ben Sims Lawn Tips pack for my instant turf couch and all of the products have been sensational. The improvement in my couch at a former residence, in which I did not use these products, and the couch at our new place, in which I use these products, is 10 fold. Very happy.
Liquid iron results!
By: Nicholas on 29 December 2020
I bought this as part of the Ben Sims pack and I am seeing good long term results where my buffalo lawn is staying greener for longer. Love it. I'll be continuing to buy this, but in a bigger size!
Go green or go home!
By: Nathan on 9 December 2020
Never used anything like this in my life! After just days of using it on my lawn, it was the most green it has EVER been.
Now using it every 2 weeks.
Thanks plant doctor!
Great for the added green
By: Mitchell on 1 December 2020
This product proves itself time and time again. Anytime I’m looking for that hit of added green I add it in to the mix and within a day have a solid shade better than I had. Definitely recommend having this in your kit!
Special Mix Product 4
By: RON on 17 November 2020
I have noticed how much greener my plants and lawn are after using this product.
A Deeper Green
By: Scott on 15 November 2020
I have been using Liquid Iron on my lawn since my reno in September. Its given my grass a deeper green. The neighbours keep asking what I'm doing to make it look so good.
Value For Money and a Great Product
By: Chris on 12 November 2020
I have tried a few different Liquid Iron products and I have found this works the best for me. Overnight I noticed the beginning of the change then after 2 or 3 days the difference was amazing. Well worth the money indeed!
Green is getting greener
By: Sunny on 9 November 2020
I have used liquid iron and it makes lawn green. Best products are from plant doctor. Highly recommended.
Green to dark green quick
By: Jean on 6 November 2020
Happy with this product. Need to be careful as it stains pathways. Take a little practice to get it even but its effective.
The grass is greener
By: Steve on 30 October 2020
Terrific product. 2-3 days after application and the lawn is looking green and lush. It is great to use in the days leading up to a BBQ or having company over. 4 litres of this will last a long time and results are definately worth it. Can be mixed with other products if you want to reduce labour time, but I find it best to apply as a stand alone product.
Great value product
By: Kirsty on 20 October 2020
Cheaper and better than any other liquid iron I have tried
Green it up!!!
By: Mitch on 20 September 2020
You want dark green lawn then this is the key. Great to give the lawn that dark green boost.
Use it for quick boost of green colour
By: Vijayant on 19 September 2020
I was amazed to see the results of this product first time I used it. It makes the lawn go deep green within few hours of application. Very easy to use in an old seasol spray bottle.
Such a good product
By: Jerome on 27 July 2020
Can be used as a foliar spray on just about anything with visible results in only days. Iron does stain paths, bluestone etc so watch any overspray and wash off immediately. My lawn and lily pilly's in particular love this stuff!
Amazing results.
By: Brandon on 23 July 2020
Got it in my Ben Sims pack. Absolutely stoked with the results
Highly recommended
By: Michael on 22 July 2020
Ordered my product and had them delivered within 48 hours (for free!!) Very helpful team and support to finding the right solution for my needs. Great experience as well as value for money and can’t wait to see the results of the products. I did a lot of research and came to the conclusion that PD products are the way to go. Plus supporting a local business make it the purchase even better. Thanks guys!
Great product
By: Alexander on 7 July 2020
Great product that was shipped in 2 days and did the job.
Great product
By: Stephen on 24 June 2020
Only takes a few days to see the difference in the lawn. Green's up very quick!
Great results
By: Aaron on 21 June 2020
After using other iron products with ok results, this stuff works great! Could see significant difference in hours deeper green colour absolutely. Top Product!!
Liquid Iron to make your lawn pop!
By: Ben on 18 June 2020
Very impressed with the effectiveness of the Plant Doctor liquid iron. The first application of this product gave my lawn a punch of bold green colour and had it looking fantastic. Works particularly well with Stimulizer. Highly recommended.
Extra green hit
By: Shannon on 11 June 2020
Has help my lawn stay extra green before hitting winter. Great product
Green Grass
By: Ellie on 9 June 2020
After being told from a friend about this product I thought I should try it. I’m glad I listened. Within days my green grass developed a darker green colour. Looks mint. Highly recommended
Love at first use
By: Christopher on 9 June 2020
Absolutely in love with the plant doctor liquid iron product. Can't stop staring at the deep green colour that my lawn now has. This product is the icing on the cake of the suite of plant doctor products. Absolutely stoked.
Greens up very nicely
By: Luke on 25 May 2020
Applied this in my front and back lawn, within a week the lush green colour was back, the results are awesome.
Noticeably Greener
By: Craig on 20 May 2020
Have just started using at the minimal recommended dose and I'm very impressed with the effect this product has has in just 2 days.
Noticeably Greener
By: Craig Grecian on 19 May 2020
I put down on my Tiftuff a couple of weeks ago at the lowest dosage rate. 2 days later I began to see results of a much greener lawn. First product from The Plant Dr I have tried and I'm impressed.
So Green!
By: Brad on 8 May 2020
Applied Liquid Iron to my lawn and within two days it was noticeably greener, very happy with the product.
WOW WOW
By: Steven on 29 February 2020
You want green lawn, well this stuff works a treat. A must have for every lawn lover.
Definitely works
By: Kyle on 20 December 2019
I bought this product in a bundle but tested it seperately to see how it worked as I was wondering if my lawn would react being I am on an old bore that is quite irony as it is. I did not see any real change in my lawn but I gave it to a neighbour who waters on scheme water and got him to just treat half his lawn first. Within 2 days there was a considerable difference in the colour. The iron applied patch was far greener. If you just want to give your lawn that quick green up, this is the product.
Green all year around
By: Mohamed on 13 December 2019
Thanks to this product my lawn looks green 365 days of the year
Green and Tolerant!
By: Aaron on 24 November 2019
I have used this on a few patches that were really struggling, and they are going very strong now. Much healthier after having used Liquid iron.
I've found it's helping a lot in the heat too.
Liquid Iron Fertiliser
By: Dale on 4 November 2019
Boom, want a hit of luscious dark green?
Then get this bad boy :)
Iron
By: Jack Deen on 23 October 2019
Great product if you want that deep green look!
Fantastic
By: Alexandra on 22 September 2019
Awesome product. Greenest lawn in the street
Great
By: Aaron on 20 September 2019
First time I've used liquid iron on my lawn and I'm definitely impressed! Great value also should last a long time. Lawn is looking extremely green and healthy!
Green is an understantement
By: Aaron on 11 September 2019
Lawn just absolutely popped after a week of this stuff, great application rates too
Green and Mean
By: Rhys on 20 August 2019
Never had my lawn looking greener. Great Product that mixes well with out Plant Dr liquids!
So Green
By: Tom on 19 August 2019
I have never used liquid iron before, and now I won't be able to live without it! Can't believe how green my lawn now is. This is a great product and is well worth the money.
Next Level Green
By: Brett on 11 August 2019
Certainly the product to use if you are looking to get your lawn a beautiful dark green. Easy to use and great results overall.
Another fantastic P.D product
By: Stephen on 23 June 2019
Easy application. I mix it with Seaweed secrets, activ8mate and stimulizer on my lawn. The lawn is loving it. Giving it just that extra protection over the frosty winter months.
Deep green
By: phillip on 18 June 2019
Great to use when you want a nice and green lawn but don’t want to use nitrogen.. it’s more than just and iron supplement
Nice product
By: Shannon on 3 June 2019
Makes the lawn pop with green colour. Highly recommended! Delivery was super quick and friendly service!
The Green Hornet!!
By: robert on 16 April 2019
Green up super boost. Really helps protect my LaPrima Couch from -1 Autumn frosts.
A+ for product and service
By: Shayne on 11 April 2019
Really great product and fast delivery. Helps turn a ‘green-ish’ lawn to a vibrant green!
Dark Green Lawn
By: Stephen on 29 March 2019
Most fertilizers contain a little iron, but you’ll need to supplement if you want the darkest green lawn you can get. I just laid a buffalo lawn, and it needs more iron than other types. This product works wonders
Green, Green, Green!!!!!
By: Paul on 27 March 2019
Excellent product even when applied at lowest concentration. Within days results were noticed with a deep rich colour emerging.
Great green up
By: Matthew on 23 March 2019
Makes the lawn pop with rick colour. Highly recommended! Delivery was super quick.
24hr results
By: Scott on 10 March 2019
With the local temperatures dropping my Kikuyu lawn is starting to go a little yellow.
Yesterday I hit it with a dose of Plant Doctor Liquid Iron Fertiliser and today its looking greener and very lush.
I really like the results this product gives and cannot recommend it enough.
It gets 5 out of 5 stars from me.
Excellent
By: Marckus on 9 March 2019
Awesome product. Seeing a difference from one application from the lowest mixing rating
Very effective
By: Michael on 6 March 2019
This stuff is great - really gives the lawn a good boost and it holds its colour.
Really Greens up the Lawn
By: Paul on 8 February 2019
Used this liquid iron on my Sir Walter Buffalo and REALLY Greened it up within a week...was really impressed with the results as have used other products in the past but this particular one is the one I will be sticking to. Great Product and would highly recommend its usage in conjunction with other products from plant doctor!
Neighbours green with envy!
By: Jake on 30 January 2019
Product performs as stated. I used the lowest dosage recommended and it's greened up the lawn immensely a week in, can't wait to add to my regular lawn care schedule.
I'll be happy to stay on the lower doses, which means incredible value for money for me!
So Green has to be Seen
By: Michael on 2 January 2019
This beast has made my buffalo look like a its been painting with a dark green crayon. Used a mid strength application and boy did it bring the colour alive. Its like I'm wearing polarised sunnies or looking at my grass on a HDR OLED TV.
DARK GREEN COUCH
By: Andrew on 18 December 2018
love how well this product darkened up my couch, seen results within 2 days using 150ml over 100m2
great stuff
By: nathan on 17 December 2018
I highly recommend this product its easy to use and greened up my lawn really nicely
Great quick results
By: Matt on 16 December 2018
After one application of the Iron, my lawn is looking a deeper green than I expected with the lower end of the dosage, can't wait to ramp it up. Great product
Not just for lawns
4 December 2018
Bought this to help my lawns pop and pop they did. Turns the grass a beautiful lush dark green. Also sprayed the orange tree and wow, the old girl looks like new.
WOW
By: Corey on 27 November 2018
Wow, never did I think my lawn could have such a dark green colour. I am now the envy of all my street cheers
Liquid gold
By: dimitrios on 8 November 2018
Liquid gold that turn your lawn lush green
Next level green
By: Brett on 31 October 2018
This gave my lawn that next level green!! Great value for money!
Next level
By: Joel on 23 October 2018
This is how to take your lawn to next level. Great product. Great value.
Great colour
By: Shaun on 19 October 2018
Great colour provided by this product. Love the results.
Excellent Product
By: Ashley on 11 October 2018
Instant boost of colour for the lawn after applying this stuff. Works great
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Customer Reviews
5
First time owning lawn. Gave the team at plant doctor a ring and they supplied me with a wealth of information. Products turned up quickly.
Billy Green
5
Will definitely be getting more 8 weeks difference been using stimulizer, activ8mate, soil wetter, seaweed secrets and champion fertiliser. Was super fast delivery.
Michael Preddy
5
Only have great things to say about Plant Doctor. Organic products and a competitive price, fast shipping and easy to contact with questions. Have had great results with the special mix for lawns, and my plants (indoor and outdoor) love the seaweed secrets. I am excited to test out some of the animal products soon!
